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Stainless steel solid bearing holder and its making method

A technology of bearing cage and manufacturing method, which is applied in the direction of bearing components, shafts, bearings, mechanical equipment, etc., can solve the problems that designers and bearing manufacturers cannot adopt, and the price of bearing cage products remains high, so as to achieve excellent durability Corrosion of acid, alkali and salt, long service life and good wear resistance

Inactive Publication Date: 2007-03-14
DALIAN SANHUAN COMPOSITE MATERIAL TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the price of solid bearing cages made of copper alloy or stainless steel has remained high, so they cannot be adopted by designers and bearing manufacturers.

Method used

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  • Stainless steel solid bearing holder and its making method
  • Stainless steel solid bearing holder and its making method
  • Stainless steel solid bearing holder and its making method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Example 1: Batch production of solid bearing cages weighing about 2 kg by investment casting

[0024] Choose ZG1Cr18Ni9Ti or ZG0Cr18Ni9Ti to make stainless steel solid bearing cage, the mass percentage of carbon content is 0.06% ~ 0.08%, the mass percentage of other alloy components are: manganese Mn0.8% ~ 2.0%; chromium Cr 17.0% ~ 20.0%; Nickel Ni 8.0%~11.0%; Titanium Ti 0.68~0.7%; Silicon Si 1.2%~1.5%.

[0025] Its investment casting precision casting manufactures stainless steel solid bearing cages, and its process steps are as follows:

[0026] (1) Fusible mold processing: design and process fusible molds according to the drawings of the bearing cage;

[0027] (2) Fusible mold manufacturing: the wax-based mold material is selected from 64° paraffin wax mixed with ingredients, and pressed into shape;

[0028] (3) Shell processing and finalization: dipping in paint and sanding 8 to 10 times, dehumidifying and drying;

[0029] (4) Dewaxing by high-pressure steam met...

Embodiment 2

[0034] Example 2: Production of a solid bearing cage of about 4 kg by investment casting

[0035] Low-carbon austenitic stainless steel still chooses ZG1Cr18Ni9Ti or ZG0Cr18Ni9Ti, and the process steps of investment casting stainless steel solid bearing cage are as follows:

[0036] (1) Fusible mold processing: design and process fusible molds according to the drawings of the bearing cage;

[0037] (2) Fusible mold manufacturing: the wax-based mold material is selected from 64° paraffin wax mixed with ingredients, and pressed into shape;

[0038] (3) Shell processing and finalization: dipping in paint and sanding for 10 to 20 times, dehumidification and drying;

[0039] (4) Hot water melting and dewaxing: the fusible mold is dewaxed by 95-98°C water temperature melting; the method of hot water melting and dewaxing is mainly aimed at the situation where the daily output is below 3 tons;

[0040] (5) Roasting of the molded shell: Roasting is carried out in a coal furnace or an...

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Abstract

The invention relates to a stainless steel solid retainer and the manufacturing method, characterized in that said solid retainer is low-carbon austenitic in whole; by precision-investment casting technology retainer blank with less than 20% metal allowance of finish product is made and then the finish product is machined mechanically. Because there are good corrosion and shock resistance so on in low-carbon austenitic the retainer with low-carbon austenitic can replace copper alloy and is widely applied in sea-water environment, chemical equipment and so on, in which there is corrosion medium with acid, alkali and salt. It is applied in the area in which high shock resistance is required such as rolling bearing. Because of casting technology the utilization ratio of stock is improved and the production cost is decreased. There are long-range market prospect in the invention.

Description

technical field [0001] The invention relates to a bearing cage, in particular to a stainless steel solid bearing cage and a manufacturing method thereof. Background technique [0002] At present, the materials used to process solid bearing cages on the market are nylon, copper alloy and medium and low carbon steel. Nylon material is greatly affected by the working temperature of the bearing. Under high temperature conditions, the thermal expansion coefficient is large, and the material strength is lower than that of carbon steel or copper alloy. It is not used in the design of medium and large-sized bearings; the bearing cage of carbon steel material has good toughness, The price is low, but it is noisy, not anti-corrosion, and has poor reliability and is not used by people; the bearing cage made of copper alloy material has a relatively long service life, low noise, and better reliability than nylon and carbon steel bearing cages, but Copper alloy materials have poor tough...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C33/44C22C38/50
Inventor 赵长江苑兆生
Owner DALIAN SANHUAN COMPOSITE MATERIAL TECH DEV